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Comparison of overapproximation methods for stability analysis of networked control systems

Published: 12 April 2010 Publication History

Abstract

The presence of a communication network in a control loop induces many imperfections such as varying transmission delays, varying sampling/transmission intervals and packet loss, which can degrade the control performance significantly and can even lead to instability. Various techniques have been proposed in the literature for stability analysis and controller design for these so-called networked control systems (NCSs). The goal of this paper is to survey a particular class of techniques using discrete-time models that are based on polytopic overapproximations of the uncertain NCS model and lead to stability conditions in terms of linear matrix inequalities (LMIs). We discuss the advantages and disadvantages of the existing techniques in both qualitative and quantitative manners. In particular, we apply all methods to a benchmark example providing a numerical comparison of the methods with respect to conservatism as well as numerical complexity.

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    cover image ACM Conferences
    HSCC '10: Proceedings of the 13th ACM international conference on Hybrid systems: computation and control
    April 2010
    308 pages
    ISBN:9781605589558
    DOI:10.1145/1755952
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    Published: 12 April 2010

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    Author Tags

    1. communication delays
    2. lmi
    3. networked control systems
    4. polytopic systems
    5. stability

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    • (2024)Networked Control SystemsWiley Encyclopedia of Electrical and Electronics Engineering10.1002/047134608X.W8447(1-17)Online publication date: Mar-2024
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